发明授权
US4979961A p-phenylenediamines, process for preparation thereof, dyeing composition
containing them and corresponding dyeing process
失效
对苯二胺,其制备方法,含有它们的染色组合物和相应的染色方法
- 专利标题: p-phenylenediamines, process for preparation thereof, dyeing composition containing them and corresponding dyeing process
- 专利标题(中): 对苯二胺,其制备方法,含有它们的染色组合物和相应的染色方法
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申请号: US342578申请日: 1989-04-24
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公开(公告)号: US4979961A公开(公告)日: 1990-12-25
- 发明人: Alex Junino , Alain Genet , Gerard Lang
- 申请人: Alex Junino , Alain Genet , Gerard Lang
- 申请人地址: FRX Paris
- 专利权人: L'Oreal
- 当前专利权人: L'Oreal
- 当前专利权人地址: FRX Paris
- 优先权: FRX8805473 19880425
- 主分类号: A61K8/00
- IPC分类号: A61K8/00 ; A61K8/33 ; A61K8/40 ; A61K8/41 ; A61K8/42 ; A61K8/46 ; A61K8/49 ; A61Q5/10 ; C07C319/20 ; C07C323/25 ; C09B53/00 ; D06P3/08
摘要:
The invention relates to p-phenylenediamines of formula: ##STR1## in which R.sub.1 denotes an alkyl, hydroxyalkyl or polyhydroxyalkyl radical and R.sub.2 denotes a hydrogen atom or an alkyl radical, as well as the corresponding salts with acids, and to the compositions and the process for dyeing keratinous fibers, especially hair, employing them.
公开/授权文献
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